Marantz M-CR611/FN User Manual

NETWORK CD RECEIVER
M-CR611 /
U1B/N1B/K1B
/FN
M-CR611
S1315V04DM/DG1607
Copyright 2016 D&M Holdings Inc. All rights reserved.
WARNING: Violators will be prosecuted to the maximum extent possible.
Ver. 4
•
Some illustrations using in this service manual are slightly different from the actual set.
•
Please use this service manual with referring to the operating instructions without fail.
•
For purposes of improvement, specications and design are subject to change without notice.
Please refer to the
MODIFICATION NOTICE.
Service
Manual

Marantz M-CR611/FN Specifications

General

Brand	Marantz
Model	M-CR611/FN
Category	Car Receiver
Language	English

Summary

Safety Precautions

Servicing and Inspection Safety Cautions

Essential cautions regarding electrical shock, disassembly, assembly, and using designated parts for safety.

Important Safety Properties of Parts

Details on special safety properties of parts, indicated by marks, and the importance of using designated replacement parts.

Servicing Cautions and Procedures

Unit Initialization Procedure

Procedure for initializing the unit, restoring factory settings after replacing the microcomputer or digital PCB.

AMP PCB Removal Precautions

Disassembly Flow

Disassembly Steps Overview Flowchart

Detailed Disassembly Steps

Top Panel and Front Panel Assembly Disassembly

CD Mecha, Tuner, and Shield Cover Disassembly

SMPS, Back Chassis, and Main PCB Assembly Removal

Laser Pick-up Handling and Special Modes

Laser Pick-up Handling Precautions

Precautions for handling the laser pick-up, including protection from dust, shock, and proper grounding.

Determining Laser Pick-up Defects

Special Mode Operations Overview

Details on how to enter and use various special modes, including factory initialization and test modes.

Initialization Modes and Version Display

Information on Factory and User Initialization modes, version display, and CD test mode operations.

Protection History Display Mode

Firmware Update Procedures

Updating Firmware via USB

Step-by-step guide for updating firmware using a USB memory device, including file preparation and transfer.

Forced USB Write Mode and CY920 Error Update

Procedures for forced USB write mode and updating firmware in case of a CY920 error.

Updating Firmware via DPMS

Firmware Error Code Table

Troubleshooting Common Issues

OLED Display Not Lighting Troubleshooting

Troubleshooting steps for the OLED display not lighting, checking voltages, reset signals, and oscillation waveforms.

No Sound or Noise Issues Troubleshooting

Diagnostic procedures for no sound or noise issues, checking digital audio data, PWM waveforms, and common signals.

Common Signal Path Troubleshooting

CD Playback Troubleshooting

Tuner and Connectivity Troubleshooting

Analog Audio Output and Mute Circuit Troubleshooting